Friction drive for driers



A ril 27, 1926. 1,582,665

E. E. BERRY FRICTION DRIVE FOR DRIBRS Filed Dec. 15. 1925 2 sheets-shew1 [M Man A fil 27, 1926. 1,582,665

E. E. BERRY FRICTION DRIVE FOR DRIERS Filed D60. 15 1923 2 Sheets-Sheet2 Patented Apr; 27, 1926.

EARL E LWIN BERRY, OF BELOIT, WISCONSIN, ASSIGNOB TO BELOIT IRON WORKS,OF

BELOIT, wIscoNsIN.

FRICTION DRIVE ron mamas.

Application filed December 15, 1923. Serial No. 680,822.

To all whom it may concern.

Be it known that I, EARL E. BERRY, a citis zen of the United States, anda resident of the city of Beloit, in the county of Rock and State ofWisconsin, have invented certain new and useful Improvements in aFrictionDrive for Driers; and .I hereby declare that the following is afull, clear, and exact description of the same, reference being had tothe accompanying drawings, and to the numerals of reference markedthereon, which form a part of this specification.

Inpaper web drying machines of the Fourdrinier and similar types thedrying cylinders or :rolls'are rotated by means of large-intermeshinggears which not only set up Vibrationsand are noisy in operation butalso cause considerabletrouble in that the gear teeth break off due tothe excessive strain to which they are subjected. The

breaking of gear teeth means, thereplace= ment of the gear and a longdelay for repairs during which'time the entire machine.

is out of use. Theuseof'large driving gears also make it extremelydifficult to obtain proper access to thedrying cylinder bearings andjournals.

To obviate the above mentioned defects in driers for paper makingmachinesand the like, this invention relates to an improved type ofdriving mechanisms for the steam drier cylinders of a paper makingmachine.

It is an object of this invention to provide a web drying machine withfriction drive mechanisms for the driers, thereby providing aconstruction of fewer parts and less expensive since the bearings andjournalsof the upper driers are not required.

It is also an object of the invention to provide the drier cylinders ofa paper drying machine with friction flanges to replace driving gears,said friction driving arrangement permitting easy removal of bunchedpaper from between the cylinders in case the paper tears.

It is an important object of this invention to provide a paper dryingmachine of im proved construction wherein the drier cylinders are driventhrough friction flanges and wherein the lower drier cylinders aresupported on roller or ball bearings, thereby affording a machinewherein vibrations and noise are greatly reduced.

"Qther and further important objects of this invention willbe apparentfrom the dis closures in the specification and accompanying drawings. pi

This invention in a preferred form) is illustrated in the drawings andhereinafter trating part of the framework.

Figure 3,1S: a fragmentary'detail view taken on line 3--3 of Figure 2.

Figure f is an enlarged vertical detail view through the roller bearingsupport at the front side of one of thedrier cylinder supports (line 4l,Figure 2) showing the housing in section.

Figure 5 is a detail sectional view through the support for one of thedriving drier cylinders (line 55, Figure 1) with the motor and partsomitted. i I

Figure 6 is a view taken on line 66 of Figure 4.

As shown on the drawings s I Figure 1 illustrates a diagrammatic sidelevation of the drier unit of apaper drying machine of the Fourdriniertype and com-.

prising a plurality of lower drier cylinders 1, driving cylindersQ, andupper cylinders 3. A plurality of guide rolls 4; are provided forsupporting drier felt conveyors 5 which conduct a web tobe dried throughthe machine in contact with the drier cylinders which are steam heated.

The upper .tier ofdrier cylinders 3 are positioned to rest on the lowertier of drier cylinders 1 and 2 as illustrated in Figures 1 and 2. Eachof the cylinders 1, 2 and 3 has rigidly bolted or otherwise secured toone end thereof a ring driving flange 6 (Figure 3) each having a beveledportion 7. The driving flanges frictionally contact one another and thusimpart a rotary motion to the drier cylinders. The cylinders 2 are thedrivingcylinders and each is provided at one end with a shaft ortrunnion 8 having a roller 9 fixed or formed thereon intermediate theends thereof and adapted to run on bearing rollers within a bearinghousing 10 similar to the arrangement illustrated in Figure 4:. Fixed onthe outer end of each of the driving trunnions 8 is a gear which mesheswith a driving gear mounted on the end of the shaft of a driving motor11.

A. drive from a motor 11 is thus transmitted through the meshing gearsto the trunnion 8 and the respective driving cylinder 2 the drivingflange G of which being in frictional contact with the flanges 6 of twoor the upper tier cylinders 3 causes rotation of said upper cylinderswhich in turn serve to transmit the drive to the remaining cylindersthrough the friction flanges. All of the drier cylinders are thusfrictionally driven and act to dry a web conducted therebetween by thedrier-felts.

Each of the lower tier drier cylinders l is provided with a trunnion 12having a supporting roller 13 mounted or formed thereon and resting on apair of bearing rollers 14 the trunnions 15 of which run in rollerbearings 16 (Figure 4) supported in a hearing housing 17.

It will be noted that the drier cylinders are adapted to be frictionallydriven from the main driving cylinders 2 through the friction flanges 6thereby obviating the use of large driving gears and eliminating alldelays in the operation of the machine usually encountered due to thebreaking of gears and the time necessary for replacing the same.

Attention is directed to the fact that by equipping the drier cylinderswith :friction flanges the bearings and journal parts of the upper tierof drier cylinders are dispensed with, thus atl'ording a machine ofmaterially less parts and of a less expensive construction. lt will alsobe noted that the arrangement of the friction flanges on the driercylinders permits haying out of the cylinders in case the paper webtears and bunches up between the cylinders.

I am aware that many changes may be made and numerous details ofconstruction may be varied through a wide range without departing frointhe principles of this invention, and I therefore do not purposelimiting the patent granted hereon otherwise than necessitated by theprior art.

I claim as my invention l. The combination with a paper making machinedrier unit, of: a plurality of drier cylinders forming a part thereof,and friction mechanisms connected to drive said cylinders.

2. The combination with a paper making machine drier unit, of aplurality of drier cylinders, driving means connected to drive certainof said cylinders, and co-acting friction mechanisms on all of saidcylinders to permit the cylinders to receive a drive from said drivingmeans.

3. In a paper drier unit the combination with a plurality of co-actingdrier cylinders. of means connected to drive one of said cylinders, andfriction flanges on said cylinders adapted to co-act one with the otherto cause the drive transmitted to said one cylinder to be imparted tothe remaining cylinders.

i. In a paper drying machine drier unit a drier cylinder, a flangethereon, and friction means engaging said flange to rotate the cylinder.

5. In a paper drying machine drier unit, a drier cylinder a ring flangerigidly secured to one end thereof, and means for frictionally engagingsaid flange to cause rotation of the cylinder.

(5. In a paper drier unit, a main drier cylinder. means connectedtherewith for rotating the same, a flange mounted on said main driercylinder, an auxiliary cylinder. and a flange thereon co-acting with themain cylinder flange to receive a drive therefrom.

7. In a paper drier unit a plurality of upper and lower drier cylinderspositioned in staggered relation with the upper cylinders supported onthe lower cylinders, roller bearings for supporting the lower cylinders,means for driving certain of said cylinders, and co-acting flanges onsaid cylinders to permit the drive to be transmitted from said selectedcylinders to the remaining cylinders.

In testimony whereof I have hereunto subscribed my name.

EARL ELIVIN BERRY.

